百度试题 结果1 题目If the formula of a chemical compound is H2O, how many oxygen atoms are there? A. 1 B. 2 C. D. 3 相关知识点: 试题来源: 解析 A。H2O 表示一个水分子,其中氧原子的数量是 1 个。反馈 收藏
Water is made up of two elements, hydrogen and oxygen. How many hydrogen atoms are there in one molecule of water? A. One B. Two C. Three D. Four 相关知识点: 试题来源: 解析 B。解析:一个水分子的化学式是H₂O,这表示一个水分子由两个氢原子和一个氧原子组成,所以答案是B。A选项一...
a出口巴西里约热内卢州 Exporta o estado Brazilian de Rio de Janeiro [translate] ahow many oxygen or hydrogen atoms are there in each molecule of your acid or base when it is dissolved in water 多少氧气或氢原子是那里在您的酸或基地每个分子,当它在水中被溶化 [translate] ...
Moles to Atoms | Formula, Calculation & Avogadro's Number from Chapter 2 / Lesson 4 212K What is the moles to atoms formula? How does one convert atoms to moles? Learn how to calculate the number of atoms in a sample from the relationship between moles and Avogadro's number. Related...
Oxygen has two allotropic forms, diatomic (O2) and triatomic (O3, ozone). The properties of the diatomic form suggest that six electrons bond the atoms and two electrons remain unpaired, accounting for theparamagnetismof oxygen. The three atoms in theozonemoleculedo not lie along a straight lin...
The correct answer: Atoms of oxygen have a total of eight electrons. These oxygen atoms are not stable. The stability depends on the electronic...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer y...
How many moles of oxygen are in 90.4 grams of {eq}Sn(C_2O_4)_2 {/eq}? Moles of Atoms: The number of moles of a specific atom present in a compound can be derived using the corresponding molar mass and mass. At first, the mass of the compound is transformed into the correspond...
aGiven the atom and mass ratios of X to oxygen, you need to figure out the mass of X that combines with 47.998 u O, i.e., the mass of three O atoms. At this point you divide by 2 and the result should appear some place in the periodic table! 假使X原子和大量比率氧气,您需要...
It consists of two hydrogen atoms covalently bonded to a single oxygen atom. In the majority of cases, the reaction between oxygen and another element is extensively exothermic. One of the most well-known of these reactions is the one that occurs between carbon and oxygen, producing carbon ...
On the basis of the periodic table and rules for electron configurations, how many unpaired electrons are in Pb? Imagine orbital diagrams for the shorthand configurations for the following atoms. How many unpaired electrons are there in the ground state of each atom?...